John Seach

Hunga Tonga-Hunga Ha'apai Volcano, Tonga. Sulphur dioxide plume from 15 Jan 2022 eruption is crossing the Indian Ocean drifting west. Plume is approaching Madagascar, and possibly reaching Mozambique, Africa in the next couple of days.

List of the largest volcanic eruptions on Earth. http://volcanolive.com/large.html 

Hunga Tonga-Hunga Ha'apai Volcano, Tonga. Sulphur dioxide plume has reached Australia, covering Queensland, and reaching the border of the Northern Territory on 17 Jan 2022.

Hunga Tonga-Hunga Ha'apai Volcano, Tonga. Ash from the 15 Jan eruption has reached the east coast of Australia. Over eastern Queensland at an altitude of 40,000 ft, drifting west. Possibly covering large part of Australian mainland north of 30 deg south by Tues 18 Jan 2022.

Hunga Tonga-Hunga Ha'apai Volcano, Tonga. Large sulphur dioxide plume drifted 2600 km west. The SO2 plume will probably reach the east coast of Australia by tomorrow 17 January 2022.

Hunga Tonga-Hunga Ha'apai Volcano, Tonga. Volcanic ashfall in the ocean may have beneficial effects on the marine ecosystem. Volcanic ash can cause natural iron fertilisation and phytoplankton increase. Part of the biogeochemical iron-cycle.

Hunga Tonga-Hunga Ha'apai Volcano, Tonga. Magnitude 5.8 volcanic earthquake detected on 16 January 2022. This is large for a volcanic earthquake which almost never exceed magnitude 6.

More on volcanic airwaves. http://volcanolive.com/airwave.html 

The eruption of Krakatau volcano, Indonesia in 1883, produced low frequency pressure oscillations that circled the Earth seven times and produced intense acoustic waves, including audible sounds of ‘heavy gunfire’, at distances of 5000 km.

The eruption of Hunga Tonga-Hunga Ha'apai Volcano, Tonga on 15 Jan 2022 produced an airwave which was detected on barometers on the east coast of Australia. The ground-coupled airwave wave was measured at seismic stations at Cascade volcanoes, California, USA, 9000 km NE.

Hunga Tonga-Hunga Ha'apai Volcano, Tonga. Large sulphur dioxide plume extending 1500 km west, reaching south of Vanuatu. Depending on conditions, SO2 plume may possibly reach the east coast of Australia.

Hunga Tonga-Hunga Ha'apai Volcano, Tonga. A tsunami warning was issued after the eruption for many areas of the south west Pacific including the east coast of Australia. Warning includes possibility of dangerous waves and strong ocean currents.

Hunga Tonga-Hunga Ha'apai Volcano, Tonga. The eruption on 15 January 2022 produced a magnitude 4.0 earthquake. The eruption had a Volcanic Explosivity Index (VEI) of possibly 4, which makes it statistically a one-in-one year event on Earth.

A pressure wave from the volcanic eruption in Tonga was detected in my town 3300 km west of the volcano, on the east coast of Australia. Hunga Tonga-Hunga Ha'apai Volcano, Tonga.

More on Krakatau volcano, Indonesia. http://volcanolive.com/krakatau.html 

Magnitude 6.6 earthquake 85 km south of Krakatau volcano, Indonesia on 14 January 2022. Focus 37 km deep. Earthquake was felt in Jakarta, the capital of Indonesia, with a population of more than 10.5 million people.

More on Yasur volcano, South West Pacific. http://yasur.com/ 

Yasur volcano, Vanuatu, South West Pacific. Low level eruptions causing ashfall at villages close to the volcano. Yasur is one of the world's most active volcanoes. It is known as the Lighthouse of the Pacific because of its regular eruptions for hundreds of years.

More on Hunga Tonga-Hunga Ha'apai volcano, Tonga. The Earth's Newest Volcanic Island. http://volcanolive.com/hunga.html 

Hunga Tonga-Hunga Ha'apai Volcano, Tonga. Large eruption on 15 Jan 2022. Ash plume to height of more than 60,000 ft. A small 30 cm high tsunami was recorded at Nuku'alofa, the capital of Tonga. The volcano was erupting in Dec 2021 but was declared dormant 4 days ago!